Dr. Bijay  Kumar  Sahoo

Department Department of Physics
Designation Professor
Educational Qualification M.Sc (Physics), Ph.D; P.D.F National Center for Radio Astrophysics (TIFR, Mumbai, 2004-2005)
E-Mail bksahoo.phy@nitrr.ac.in, bijaya.nitr@gmail.com
Contact Number 9131144736
Areas of Interest

Subject Thaught

(1) UG Level

(i) PH10I005PH: Theory of Relativity; Wave  Optics; Introduction to Quantum Mechanics; Superconductivity, Dielectrics and Magnetic materials

(ii) PH10I006PH: Semiconductors; Semiconductor devices; Electromagnetic Waves; Laser and Fiber optics

(2) PG Level

(i) PH911103PH: Quantum Mechanics-I

(ii) PH912103PH: Electrodynamics-I

(iii) PH913103PH:Laser & Fiber Optics

(iv) PH914202PH: Optoelectronics

Research Interest

Theoretical Condensed Matter Physics

1. Self-Heating minimization and Efficiency droop reduction in III-V Nitride LED

2. Thermoelectric efficiency of III-V nitride superlattices

3. III-V nitride and Graphene in SPR Biosensor

4. Non-linear Optics in III-V Nitrides


Publications

Some Selected Publications 

 

  1. Role of interfacial electric field on thermal conductivity of GaN/InxAl1-xN/GaN SL (x=0.17), J. K. Mehera and B. K. Sahoo, Int J Mater Research (2023)

  2. Reduction in thermal conductivity in  GaN/InxAl1-xN/GaN SL under the influence of electric field, J K Mehera and B K Sahoo Ind J Physics (2023)

  3. Piezoelectric lattice vibration in binary nitrides at optical frequency, P Sahare and B K Sahoo, European phys J  Plus (2022)

  4. Piezoelectric lattice vibration in GaN at optical frequency, P Sahare and B K Sahoo, Physica B (2022)

  5. Reduction of thermal conductivities by polarization electric field induced in InxGa1-xN/GaN SLs”, J Alloys Comp (2022), by S. S. Sahu and B. K. Sahoo

  6. Polarization effect on TBR of GaN/InGaN SLs with low In contents”, S. S. Sahu and B. K. Sahoo ; European Phys J Plus (2021) 136:1160
  7. TBR enhancement through interfacial polarization electric field induced in GaN/InxGa1-xN SLs; S Sahu and B K Sahoo; Superlatt Microstruct 159 (2021) 107035
  8. Portable Capillary Sensor with Plasmonic Platform for Monitoring WaterPollutants, BK Sahoo et al Plasmonics (2021) https://doi.org/10.1007/s11468-021-01414-9
  9. Thermal Conductivity Reduction by Interfacial Electric Field in InGaN SLs, S Sahu and B K Sahoo, Material Sc Engg B 273 (2021) 115394
  10. Reduction of thermal property due to interfacial polarization mechanism of InGaN/GaN SLs, S Sahu and B K Sahoo; Physica E 134 (2021) 114849
  11. Role of interfacial electric field in thermal properties of InGaN/GaN SLs(x=0.7), S Sahu and B K Sahoo, Ind J Physics (2021); 

  12. P. Sahare and B. K. Sahoo; IOP Conf. Ser.: Mater. Sci. Eng. 1120 012021(2021)

  13. J. K. Mehra and B. K. Sahoo; IOP Conf. Ser.: Mater. Sci. Eng. 1120 012030 (2021)

  14. A. Pansari and B. K. Sahoo; IOP Conf. Ser.: Mater. Sci. Eng. 1120 012031 (2021)

  15. Interfacial electric field and cross plane thermal conductivity GaN/InGaN/GaN SL(x=0.3), A Pansari and B K Sahoo; Appl. Phys. A,127 (2020) 258

  16. P. Sahare and B. K. Sahoo; Materials Today (2020)

  17. N. Anchal and B. K. Sahoo, Materials Today (2020)

  18. N. Anchal and B. K. Sahoo; IOP Conf. Ser.: Mater. Sci. Eng. 798 012017(2020)

  19. S. S. Sahu and B. K. Sahoo; IOP Conf. Ser.: Mater. Sci. Eng. 798 (2020) 012027

  20. S. S.Sahu and B. K. Sahoo ; IOP Conf. Ser.: Mater. Sci. Eng. 798 012027(2020)

  21. P. Sahare and B. K. Sahoo ; IOP Conf. Ser.: Mater. Sci. Eng. 798 012018 (2020)

  22. P. Sahare and B. K. Sahoo; AIP Conference Proceedings 2220, 040008 (2020);

  23. N. Anchal, A. Pansari, and B. K. Sahoo; AIP Conference Proceedings 2220, 050008 (2020)

  24. S. S. Sahu and B. K. Sahoo ; AIP Conference Proceedings 2220, 130013 (2020)

  25. Pyroelectric effect and thermoelectric improvement of AlInN/GaN Heterostructures; Subhransu S. Sahu and B. K. Sahoo; Thin Solid films; 684 (2019) 59.
  26. Primary pyroelectric transition temperature of binary nitrides; M. Swain, S. K. Sahoo and B. K. Sahoo;Modern physics Lett B; 33 (2019) 1950049.
  27. Pyroelectric property of binary nitrides; G. Hansdah and B. K. Sahoo; International Jouirnal of thermophysics; 40 (2019) 20
  28. Pyroelectric effect and lattice thermal conductivity of InN/GaN Heterostructure; G. Hansdah and B. K. Sahoo, J. Phys. Chem. Solids, 117 (2018) 111. 

  29. S. S. Sahu and B. K. Sahoo; AIP Conference Proceedings 2009, 020001 (2018)

  30. Built in polarization and thermal conductivity of InGaN/GaN Heterstructure; V. Gedam and B. K. Sahoo; Physica E 93 (2017) 63
  31. III-V nitrides and graphene based SPR biosensor for detection of hemoglobin in human blood, G. Mohantyx, B.K. Sahoo,  Cur. Appl. Phys, 16 (2016)1607
  32. III-V nitrides and performance of graphene on copper SPR biosensors; G. Mohanty and B. K. Sahoo, Superlattices and Micrstructure 93 (2016) 226
  33. Effect of semiconductor on sensitivity of a graphene silver spr biosensor; G. Mohanty, J. Akhtar and B. K. Sahoo, Plasmonics, 11 (2016) 189
  34. Built-in-polarization effect on thermal properties of AlGaN-GaN heterostructure; A. Pansari, V. Gedam and B. K. Sahoo, J. Phys. Chem. Solids, 87 (2015) 177.
  35. Macroscopic polarization and bowing parameters of AlGaN,Anju Pansari, Vikas Gedam and B. K. Sahoo,  Physica B, 456  (2015) 66
  36. Macroscopic polarization and bowing parameters of InGaN, V. Gedam, A. Pansari and B. K. Sahoo, J. Electronic Materials, 44  (2015) 1035
  37. Macroscopic polarization and thermal conductivity of InN, B. K. Sahoo, J. Alloy. and Comp., 605  (2014) 217
  38. Macroscopic polarization and thermal conductivity of GaN, B. K. Sahoo, S. K. Sahoo and S. Sahoo, J. Phys. Chem. Solids, 74 (2013) 1669
  39. Macroscopic polarization effect on thermal properties of binary wurzites, B. K. Sahoo, S. K. Sahoo and S. Sahoo, J. Appl. Phys,114  (2013) 163501
  40. Effect of piezoelectric polarization on phonon velocity in wurtzite nitrides, B. K. Sahoo, J. of Material Science, 47 (2012) 2624
  41. Spectra of relic gravitons and Brans-Dicke theory, B. K. Sahoo, Mod. Phy. Lett A 20(2005)127
  42. Gravitational waves in generalised Brans-Dicke theory, B. K Sahoo and L. P. Singh, Mod. Phy. Lett A 19 (2004)1745
  43. Cosmic evolution in generalised Brans-Dicke theory, B. K. Sahoo and L. P. Singh  Mod. Phy. Lett A 18 (2003)2725
  44. Time dependence of Brans-Dicke parameter for expanding universe, B. K. Sahoo and L. P. Singh, Mod. Phy. Lett A 17 (2002) 2409  

Conference publication

 

  1. Effect of III-V nitrides on performance of graphene on Ag SPR biosensorn,  Int. Conference on Science and Engineering, London, 1-3 June (2016)

  2. Polarization effect on thermal properties of AlN, DAE solid state physics symposium VIT, Vellore December,(2015)

  3. Macroscopic polarization and material parameters of binary nitrides., B. K. Sahoo, International conference on fundamental and applied sciences (ICFAS 2014), Kualalumpur, Malaysia (2014)

  4. Macroscopic polarization and thermal conductivity of InN, B. K. Sahoo, International conference on optics and optoelectronics (ICOL) - Dehradun, India (2014) 

  5. Effect of macroscopic polarization on elastic constant of AlGaN alloy, B. K. Sahoo et al, National conference on emerging trends in physics of fluids and solids,  Jadvpur University, (W.B) 06-07 March, (2014)

  6. The macroscopic polariztaion effect on thermal conductivity of GaN, B. K. Sahoo, 7th international conference on materials for advanced technologies(ICMAT 2013), 30 June - 5 July, Suntec, Singapore,(2013)

  7. The Effect of Spontaneous and Piezoelectric Polarization on Phonon Relaxation Rates in Binary Wurtzite  Nitrides , Recent trend in Advanced Material Bikaner, Rajstan (2013).

  8. Piezoelectric effect on Artificial Phonon-Plasmon Polariton in LithiumNiobate (LiNbO3), Recent trend in Advanced Material Bikaner, Rajstan (2013).

  9. Polarization effect on thermal properties of binary nitrides, World Academy of Science, Engineering and Technology, Amsterdam (2012). 

  10. Physics of SPR Biosensors, IIT, Indore Proceedings (2012).

  11. Polarization effect on phonon velocity in III-V nitrides, National Seminar on Ferro and Dielectric materials, Central Univ. Bilaspur (2010).


Theoretical study of built-in-polarization effect on relaxation time and mean free path of phonons in AlxGa1-xN alloy

Other Info.

 Ph.D Candidates

Sl.No    Name Year Institute Guide  Status
1 Mr. Shusant Sahoo 2010 NIT Durgapur Dr. B. K. Sahoo and Dr. Sukadev Sahoo Awarded
2 Ms. Anju Panasari 2011 NIT Raipur Dr. B. K. Sahoo Awarded
3 Mr. Vikas Gedam 2011 NIT Raipur  Dr. B. K. Sahoo Awarded
4 Mr. Goutam Mohanty 2012 NIT Raipur Dr. B. K. Sahoo Awarded
5 Mr. Gopal Hansdah 2013 NIT Raipur Dr. B. K. Sahoo Awarded
6 Mr. Subhranshu S Sahu 2017 NIT Raipur Dr. B. K. Sahoo Awarded
7 Ms. Priyanka Sahare 2018 NIR Raipur Dr. B. K. Sahoo Submitted
8 Mr. Jay Kumar Mehera 2019 NIT Raipur Dr. B. K. Sahoo Ongoing
9 Mr. Krishna Kumar 2020 NIT Raipur Dr. B. K. Sahoo Ongoing

 

Projects

 

Sl.No Title Funding Agency Year Status
1 Spontaneous and piezoelectric Polarization effect on thermal properties of binary nitrides CG Council of Sc and Tech Raipur 2013-16 Completed
2 Effect of interface and phonon confinement on thermal conductivity and Thermoelectrics of GaN/InGaN/GaN Superlattices SERB, DST Govt. of India 2017-20 Completed
3 Effect of self-heating and strain on efficiency droop in AlGaN/GaN Ultra-Violet LEDs. DST Govt. of India 2019-2022 Completed

 

Book and Book chapters

1. Book Chapter:Macroscopic Polarization and Thermal Conductivity of Binary Wurtzite Nitrides, Ed: Ashutosh Tiwari and Mustafa M. Demir (eds.) Advanced Sensor and Detection Materials, (473–486) 2014 (c) Wiley Scrivener Publishing LLC

2.Book Chapter:Graphene and III-V nitrides in Performance of SPR Biosensors, Elsevier Graphene in Bioelectronics (2017) 

3.Book chapter:Graphene in Bioelectronics" has been Graphene and 2D Materials, WILEY-Scrivener Publisher, USA, Advanced Material Series (2017)

4.Book:Built in Polarization and thermal properties of AlGaN/GaN Heterstructures; Lambert Academic Publisher, Germany ISBN: 978-3-330-07524-5 (2017)

Responsibilities

1. HOD Physics (2023--)

2. PG Coordinator (MSc Physics 2022--)

3. Department Grievance and Academic Convener (2010 - 2020)

4. Department Purchase Coordinator (2010-2014; 2016-2020)

Foreign Visit  

1. Visited Amsterdam (Netherland) to participate in international conference in May (2012)

2. Visited Singapore to participate in international conference in  July (2013)

3. Visited Kuala Lumpur (Malaysia) to participate in international conference in June (2014)

4. Visited London (U.K) to participate in international conference in June 2016.

5. Visited Dubai(UAE) to participate in international conference in May 2017